Breadcrumb Home > Thesaurus > O Synonyms of octonary Find synonyms for: Noun 1. eight, 8, VIII, eighter, eighter from Decatur, octad, ogdoad, octonary, octet, digit, figure usage: the cardinal number that is the sum of seven and one WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of octonary (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Hanukkah Origins of the Christmas Holiday Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 Krampus: The Christmas Devil Kwanzaa ✖ Related Content Daily Word Quiz: tintinnabulation Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language